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| author | Mike Frysinger <vapier@gentoo.org> | 2005-08-15 03:06:11 +0000 |
|---|---|---|
| committer | Mike Frysinger <vapier@gentoo.org> | 2005-08-15 03:06:11 +0000 |
| commit | 2974b2a72237fa7abcb850b3f67b8375a65fbcb2 (patch) | |
| tree | c808482b3f46c8c95d7d7d046c2551966d55d073 /libpthread/linuxthreads/sysdeps | |
| parent | 17957c3015c7c189340c6a4be6d12053f3c7af12 (diff) | |
| download | uClibc-alpine-2974b2a72237fa7abcb850b3f67b8375a65fbcb2.tar.bz2 uClibc-alpine-2974b2a72237fa7abcb850b3f67b8375a65fbcb2.tar.xz | |
import thumb support from jbowler in Bug 385
Diffstat (limited to 'libpthread/linuxthreads/sysdeps')
| -rw-r--r-- | libpthread/linuxthreads/sysdeps/arm/pt-machine.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/libpthread/linuxthreads/sysdeps/arm/pt-machine.h b/libpthread/linuxthreads/sysdeps/arm/pt-machine.h index 71001ebc2..284567970 100644 --- a/libpthread/linuxthreads/sysdeps/arm/pt-machine.h +++ b/libpthread/linuxthreads/sysdeps/arm/pt-machine.h @@ -39,9 +39,24 @@ testandset (int *spinlock) { register unsigned int ret; +#if defined(__thumb__) + void *pc; + __asm__ __volatile__( + ".align 0\n" + "\tbx pc\n" + "\tnop\n" + "\t.arm\n" + "\tswp %0, %2, [%3]\n" + "\torr %1, pc, #1\n" + "\tbx %1\n" + "\t.force_thumb" + : "=r"(ret), "=r"(pc) + : "0"(1), "r"(spinlock)); +#else __asm__ __volatile__("swp %0, %1, [%2]" : "=r"(ret) : "0"(1), "r"(spinlock)); +#endif return ret; } |